1_T_Submariner
Contributor
I use LED's. I dive only open water and carry 2 lights plus a tank light so my wife and I can tell who each other are.
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HID penetrates better. I noticed in our quarry which has some setiment in the water the HID cut better whereas the LED was bright but reflected off all the setiment.
I think it's all about personal preference.
Personaly I like my Princton Shock wave LED.
Its a lot brighter then any of the other lights I've seen on night dives but not too bright.
It also has a high and low brightness setting. I've found myself puttin it on low and shading the lense with my fingers to control the beam so i'm not blinding myself or other divers.
Thats another point... I can use it above water without danger of overheating it.
I can put it against my wet suit if I need to black it out to look at biolume or sneak up on something I want a closer look at without heat issues.
Even in low vis at the local lakes I tend to just use the backup single LED light and it works fine.
I'm not an aircraft landing in fog so I don't need to see 30' out into soup.
Thats just my take on it though...